JNTU Previous Question Papers 2-1 ECE

Will you please provide me previous question paper for JNTU 2-1 ECE of B.tech ?

[Kiran Chandar]

Here I am providing you question paper for the B.tech ECE 2-1 of JNTU below :
ELECTRONIC DEVICES AND CIRCUITS:

a) Derive expression for deflection sensitivity when electron beam travels in an electric field
perpendicularly.
What happens when the velocity of the beam is parallel the field? Explain.

b) In a parallel plate diode, the anode is at 250V with respect to cathode which is 4 mm away
from it. An electron is emitted from cathode with an initial velocity of 2 × 106 m/s towards
anode. Calculate the arrival velocity of the electron at the anode,
ii) transit time, and
iii) Velocity and distance travelled by the electron after 0.5 ns.

2. a) Discuss about the charge densities and Fermi level in a semiconductor having impurities.
b) Describe the generation and recombination of charges in semiconductor devices.
c) State and explain the continuity equation.

3. a) Describe how diffusion and transition capacitances differ.
b) Explain the terms ‘Avalanche breakdown’ and ‘Zener breakdown.’
c) With suitable sketches explain the principle of operation of Tunnel Diode.

4.
a) Draw the circuit diagram for full-wave bridge rectifier and explain its principle of operation.

b) A dc power supply circuit is to be designed for the given specifications: Vdc = 5V, Idc = 200
mA. Use Si diodes and a centre tapped transformer. Assume necessary data.

5. a) With neat sketches, explain the flow of different current components of a p-n-p transistor.
Give their relationship.

b) Discuss about the CB configuration and its input, output characteristics in detail.


For more paper I am attaching an attachment with it so you can get it easily..

jntu anantapur r13 syllabus previous year question papers